martin819 martin819
  • 01-04-2021
  • Mathematics
contestada

Help me out , plzzzzz!!

Help me out plzzzzz class=

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle
  • 06-04-2021

Answer:

a. 5,040 ways

b. 210 ways

Step-by-step explanation:

a) We want to pick 4 numbers out of 10 given that orders matter

If orders do matter, it will be a permutation problem

Mathematically;

n P r = n!/(n-r)!

In this case, n is 10 and r is 4

Thus, we have it that;

10 P 4 = 10!/(10-4)! = 5,040

b) if orders do not matter

It will be a combination problem

n C r = n!/(n-r)!r!

n = 10 and r = 4

10 C 4 = 10! /(10-4)!4!

= 210

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